paralyze vs palsy

paralyze is not a noun while palsy is a noun.

Word	Noun	Adjective	Verb	Adverb
paralyze	No	No	Yes	No
palsy	Yes	No	Yes	No

As verbs, palsy is a hyponym of paralyze; that is, palsy is a word with a more specific, narrower meaning than paralyze:

paralyze (noun)	palsy (noun)
	loss of the ability to move a body part
	a condition marked by uncontrollable tremor

paralyze (verb)	palsy (verb)
cause to be paralyzed and immobile	affect with palsy
make powerless and unable to function